Manufacture of high pressure polyethylene

Details Manufacture of high pressure polyethylene Manufacture of high pressure polyethylene

C - Chemistry, Metallurgy

08

F

402/610

C08F 10/02 (2006.01) C08F 110/02 (2006.01)

Patent

CA 1070449

ABSTRACT OF THE DISCLOSURE A process for the manufacture of ethylene polymers by homopolymeri- zation and copolymerization of ethylene at pressures of from 500 to 5,000 bars and at from 50 to 450°C, with subsequent isolation of the polymers in high pressure product isolation zones and low pressure product isolation zones. The various parallel product iso- lation zones are at different temperatures, and the mean product residence times in the zones may be identical or different. Very different products, in amounts which can be chosen according to requirements, and with mutually independent polymer properties, can be obtained using only one high pressure polymerization system.

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